CN201389441Y

CN201389441Y - Novel spouted bed granulator

Info

Publication number: CN201389441Y
Application number: CN200920009732U
Authority: CN
Inventors: 乔英云; 田原宇; 盖希坤
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2009-02-19
Filing date: 2009-02-19
Publication date: 2010-01-27
Anticipated expiration: 2019-02-19

Abstract

The utility model relates to a spouted bed granulator, which mainly comprises a long-groove type tapered bed, a spouting gas inlet, raw material liquid nozzles, a middle baffle, discharging ports, inclined screens, material returning boards, material returning ports, a product recovery inclined board, a product outlet, a waste gas outlet and the like, wherein the rectangular spouting gas inlet with the same length as the long-groove type tapered bed is arranged at the bottom of the long-groove type tapered bed, and the raw material liquid nozzles are uniformly arranged at the bottom of the long-groove type tapered bed along the length direction; the material returning ports are reserved in the connecting position of the rectangular body and tapered body of the long-groove type tapered bed, and the rectangular discharging ports are reserved at the middle-upper part of the rectangular body; the inclined screens are connected with the middle-upper part of the rectangular body, and the material returning boards which are inclined to the tapered bed are arranged below the screens and are connected with the tapered body; and the product recovery inclined board and the product outlet are arranged at the tail ends of the inclined screens.

Description

A kind of novel spouted bed prilling granulator

One, technical field

The utility model relates to a kind of novel spouted bed prilling granulator, belongs to chemical machinery field.

Two, background technology

Granulation is widely used in manufacture processes such as fertilizer, medicine, industrial chemical, plastics, food, catalyst, pottery.The granulation of spouted bed has the inlet air temperature height, and because of the rapid gasification of droplet under the fast effect of high gas helps covering formation with cooling off fast, the product grain is big, even, intensity is high, sphericity is high; The bed shuttling movement has the part sieving actoion, discharge gate rationally is set can preferentially discharges bulky grain; Do not have phenomenons such as distribution grid scabs, obstruction, for the process that has chemical reaction, drying etc. to carry out simultaneously, this advantage is particularly outstanding; Simple in structure, no moving-member and distribution grid; The big no tangible particle entrainment of internal particle does not in addition generally need additional tail gas gas-solid separator.But existing spouted bed apparatus is difficult to maximize, and the granulation of spouted in addition bed needs external inclined screen and fine powder revert system, and the returning charge energy consumption is higher.

Three, summary of the invention

The purpose of this utility model provides a kind of novel spouted bed prilling granulator with regard to being to avoid the weak point of above-mentioned technology, mainly by the trough type conical bed, spouted gas inlet, the material liquid nozzle, middle baffle plate, discharging opening, inclined screen, the returning charge plate, the returning charge mouth, product reclaims swash plate, products export, compositions such as waste gas outlet, the trough type conical bed is made up of cuboid and bullet, trough type conical bed bottom is provided with the spouted gas inlet of the rectangle of length, evenly be furnished with the material liquid nozzle along its length, and can be by 1-10 nozzle apart from length vertical middle baffle plate subregion is set; The cuboid of trough type conical bed and bullet connecting portion leave the returning charge mouth, and the middle and upper part of cuboid is left long rectangle discharging opening and is connected to inclined screen, and sieve is connected with bullet down for being tilted to the returning charge plate of conical bed; The end of inclined screen is equipped with product and reclaims swash plate and products export; The top of trough type conical bed is a waste gas outlet.

Ratio is greater than 10 between the length and width of trough type conical bed.The bullet slanted angle is 30-100 °.Inclined screen stretches into 0-100mm in the cuboid, and inclination angle 10-70 °, sieve diameter is not less than the product requirement particle diameter.The inclination angle that returning charge plate and product reclaim swash plate is 10-70 °.

Four, description of drawings

Accompanying drawing Fig. 1 is a structure chart front view of the present utility model, and Fig. 2 is a structure chart side view of the present utility model, and the drawing of accompanying drawing is established bright as follows:

Wherein: 1-trough type conical bed, the spouted gas inlet of 2-, 3-material liquid nozzle, 4-middle baffle plate, 5-discharging opening, 6-inclined screen, 7-returning charge plate, 8-returning charge mouth, 9-product reclaim swash plate, 10-products export, 11-waste gas outlet, 12, cuboid, 13, bullet

Below in conjunction with drawings and Examples in detail design feature of the present utility model is described in detail.

Five, the specific embodiment

In actual design with in making, the utility model is that trough type conical bed (1) is made up of cuboid (12) and bullet (13), trough type conical bed (1) bottom is provided with the spouted gas inlet of the rectangle of length (2), evenly be furnished with material liquid nozzle (3) along its length, and can be by 1-10 material liquid nozzle (3) apart from length vertical middle baffle plate (4) subregion is set; The cuboid (12) of trough type conical bed (1) and bullet (13) connecting portion leave returning charge mouth (8), the middle and upper part of cuboid (12) is left the discharging opening (5) of long rectangle and is connected to inclined screen (6), the sieve of inclined screen (6) for being tilted to the returning charge plate (7) of bullet (13), is connected with bullet (13) down; The end of inclined screen (6) is equipped with product and reclaims swash plate (9) and products export (10); The top of trough type conical bed (1) is waste gas outlet (11).

Ratio is greater than 10 between the length and width of trough type conical bed (1).Bullet (13) slanted angle is 30-100 °.Inclined screen (6) stretches into the interior 0-100mm of cuboid (12), and inclination angle 10-70 °, sieve diameter is not less than the product requirement particle diameter.The inclination angle that returning charge plate (8) and product reclaim swash plate (9) is 10-70 °.

The spouted gas of when operation high temperature by spouted gas enter the mouth (2) will with the material larger particles bed expect spouted, material liquid nozzle (3) sprays into atomized drop, thereby drop runs into the sharply gasification and quick cold formation covering of a material of high temperature, it is big that particle becomes, as the center upwards ejection of fountain from trough type conical bed (1).Because gravity effect, these particles fall back to again near near the bed material surface cuboid (12) side, slowly be moved down into the bottom of bullet (13) along two side walls, infiltrate inlet zone then again and form covering and carried secretly up again once more, thereby formed the interior circulation of particle as regular as clockwork; Repeatedly after the circulation, particle successively wraps up, and reaches the granularity of product requirement.The particulate fraction that moves down flows on the inclined screen (6) through returning charge mouth (8), reclaims swash plate (9) and products export (10) outflow as finished product through particle on the satisfactory sieve of screening by product; The particle of small grain size flow back into bullet (13) through returning charge plate (7) from returning charge mouth (8) under the sieve, participates in circulation once more.

This equipment has the following advantages: 1) granule size is big, intensity is high, even, good sphericity; 2) directly interior circulation of screening fine grained does not have Need extra conveying energy; 3) growing rectangular devices is easy to maximize and many parallel connections.

Claims

1. novel spouted bed prilling granulator, mainly reclaiming swash plate, products export, waste gas outlet, cuboid and bullet etc. by trough type conical bed, spouted gas inlet, material liquid nozzle, middle baffle plate, discharging opening, inclined screen, returning charge plate, returning charge mouth, product forms, its technical characterictic is that the trough type conical bed is made up of cuboid and bullet, trough type conical bed bottom is provided with the spouted gas inlet of the rectangle of length, evenly be furnished with the material liquid nozzle along its length, and can be by 1-10 nozzle apart from length vertical middle baffle plate subregion is set; The cuboid of trough type conical bed and bullet connecting portion leave the returning charge mouth, and the middle and upper part of cuboid is left long rectangle discharging opening and is connected to inclined screen, and sieve is connected with bullet down for being tilted to the returning charge plate of conical bed; The end of inclined screen is equipped with product and reclaims swash plate and products export; The top of trough type conical bed is a waste gas outlet.

2. a kind of novel spouted bed prilling granulator according to claim 1 provided is characterized in that ratio is greater than 10 between the length and width of trough type conical bed.

3. according to a kind of novel spouted bed prilling granulator that claim 1 provided, it is characterized in that the bullet slanted angle is 30-100 °.

4. according to a kind of novel spouted bed prilling granulator that claim 1 provided, it is characterized in that inclined screen stretches into 0-100mm in the cuboid, inclination angle 10-70 °, sieve diameter is not less than the product requirement particle diameter.

5. according to a kind of novel spouted bed prilling granulator that claim 1 provided, it is characterized in that the inclination angle of returning charge plate and product recovery swash plate is 10-70 °.